mirror of https://github.com/a2-4am/4cade.git
17 lines
893 B
Plaintext
17 lines
893 B
Plaintext
Parser in one file
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All game-help in one separate file
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Game-help file starts with array[26] of offset/size pairs.
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Offset points to array[] of all games that start with that letter, and size of that array[].
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array[] is collection of short-name/offset of each game-help.
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short-name is Pascal string for easy iteration.
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size is omitted since upper bound is known, and with nearly 400 games, we save two blocks.
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Parser accepts short-name as parameter.
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Parser reads fixed size game-help header.
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Parser uses starting letter to index into array[26] to find offset/size for short-names array starting with that letter.
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Parser reads [size bytes] of short-names array.
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Parse iterates through short-names array to find a complete match.
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Parser reads 40x25 bytes of game-help from corresponding offset, returns it to display code to draw it.
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Game-help is 0-terminated so dislpay code knows when to stop.
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